FindFFmpeg works on Windows

The application links with ffmpeg dll and needs a copy of it to works in
the output binary location.

ffmini.cpp

@@ -1,7 +1,70 @@
 #include "fmt/format.h"
+#include "miniaudio.h"
+
+extern "C" {
+#include "libavcodec/avcodec.h"
+#include "libavformat/avformat.h"
+#include "libavcodec/avcodec.h"
+}
+
+auto callback([[maybe_unused]]ma_device* device, [[maybe_unused]]void* output, [[maybe_unused]]void const* input, [[maybe_unused]]ma_uint32 frame_count) -> void {
+}
 
 auto main([[maybe_unused]]int argc, [[maybe_unused]]char const* argv[]) -> int {
-    fmt::print("Hello, World!\n");
+    AVFormatContext* format_context = avformat_alloc_context();
+    if (!format_context) {
+        fmt::print(stderr, "Failed to create AVFormatContext\n");
+        return 1;
+    }
+
+    auto const filename = "C:/Users/miku/Downloads/Porter Robinson - Trying to Feel Alive (Official Audio).webm";
+    if (avformat_open_input(&format_context, filename, nullptr, nullptr) != 0) {
+        fmt::print(stderr, "Failed to open file {}\n", filename);
+        return 1;
+    }
+
+     if (avformat_find_stream_info(format_context, nullptr) < 0) {
+        fmt::print(stderr, "Error loading stream info\n");
+        return 1;
+    }
+
+    std::int64_t stream_index = -1;
+    AVCodec const* codec = nullptr;
+    for (std::uint32_t i = 0; i < format_context->nb_streams; ++i) {
+        auto* params = format_context->streams[i]->codecpar;
+        codec = avcodec_find_decoder(params->codec_id);
+        if (!codec) continue;
+        if (params->codec_type == AVMEDIA_TYPE_AUDIO) {
+            stream_index = static_cast<std::int64_t>(i);
+        }
+    }
+
+    if (stream_index == -1) {
+        fmt::print(stderr, "Couldn't find valid audio track inside file: {}\n", filename);
+        return 1;
+    }
+
+    ma_device device;
+    auto device_config = ma_device_config_init(ma_device_type_playback);
+    device_config.playback.format   = ma_format_f32;
+    device_config.playback.channels = 2;
+    device_config.sampleRate        = 48000;
+    device_config.dataCallback      = callback;
+    device_config.pUserData         = nullptr;
+
+    if (ma_device_init(nullptr, &device_config, &device) != MA_SUCCESS) {
+        fmt::print(stderr, "Failed to open playback device\n");
+        return 1;
+    }
+
+    if (ma_device_start(&device) != MA_SUCCESS) {
+        fmt::print(stderr, "Failed to start playback device.\n");
+        return 1;
+    }
+
+    ma_device_uninit(&device);
+    avformat_close_input(&format_context);
+    avformat_free_context(format_context);
     return 0;
 }